SIEMENS 7SJ6211 فروش رله حفاظتی زیمنس
SIEMENS 7SJ6211 ,MULTIFUNCTION PROTECTIVE RELAY WITH BACKLIT TEXT DISPLAY, 4 X 20 CHARACTERS, 7 PROGRAMMABLE LED, CASE 1/3 19″, 8BI, 8BO, 1 WATCHDOG CONTACT PHASE CURRENT TRANSFORMER 1A
The SIPROTEC 7SJ62 relays can be used for line protection of high and medium voltage networks with earthed (grounded), low-resistance earthed, isolated or compensated neutral point. With regard to motor protection, the SIPROTEC 7SJ62 is suitable for asynchronous machines of all sizes. The relay performs all functions of backup protection supplementary to transformer differential protection. 7SJ62 is featuring the “flexible protection functions”. Up to 20 protection functions can be added according to individual requirements. Thus, for example, a rate-of-frequency-change protection or reverse power protection can be implemented.